Cherne® Test-Ball® Pneumatic Plumbing Plug, Multi-Size, 4 to 6 in Nominal, Natural Rubber
Use to block flow (water DWV test) or as a back plug for sewer air testingSeals both round and out-of-round pipeZinc plated steel chain and ring handle acts as an anchor to prevent plug from sliding down a lineNatural rubber - great sealing properties as well as excellent expansion and memoryCherne® multi-size plumbing Test-Ball® plugs have the same great features as our original test ball plugs, with the added benefit that one size fits multiple pipe diameters, doing the job of 2+ single-size plugsSchrader valve inflator includes cap with valve core tightenerRing and chain assembly prevents plug from dropping into DWV system during testRemovable chainMolded in valve inflation thread3.28 in Dia deflated9.47 in L deflated40 psi inflation pressure17 psi maximum back pressure3.4 to 6.25 in usage range40 ft head